21455795

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{2027}}^1$

素因数の和:2134

約数の個数: 16

約数和(自身を含む): 27012960

約数和(自身を除く): 5557165

約数列:

[1, 5, 29, 73, 145, 365, 2027, 2117, 10135, 10585, 58783, 147971, 293915, 739855, 4291159, 21455795]

約数ペア:

[(1, 21455795), (5, 4291159), (29, 739855), (73, 293915), (145, 147971), (365, 58783), (2027, 10585), (2117, 10135)]